Interstate 40 Interchanges (Jackson)

Madison County

Overview

The proposed improvements to the interchange at Interstate 40 and State Route 186 (US 45 Bypass/Keith Short Bypass) in Madison County will consist of replacing the current facility, which involves building a new bridge over I-40, removing the cloverleaf ramps, and widening I-40 for approximately 2.9 miles. Additionally, intersection improvements will be made at Casey Jones Lane/Carriage House Drive to allow left turn movements. The I-40 bridges at SR 5 (US 45/North Highland Avenue) will also be replaced.

PURPOSE AND NEED

SR 186 (US 45 Bypass) is important north-south connector in the city of Jackson, Tennessee, and in regional transportation. It is considered a primary route from the Jackson Central Business District to I-40, and it carries a large portion of truck and through traffic coming from Mississippi and Tennessee counties south of Jackson. The route is densely commercial, including Casey Jones Village, which the Tennessee Department of Tourism notes as one of the state's top ten tourist attractions.

Increased development along SR 186 (US 45 Bypass) has resulted in steadily increasing traffic volumes for many years. Annual Average Daily Traffic (AADT) is expected to increase to 70,290 vehicles per day by 2033.

The purpose of this project is to modify the I-40 interchange at SR 186 (US 45 Bypass), including intersection improvements at Casey Jones Lane/Carriage House Drive, in order to accommodate current and future traffic demands. Additionally, the I-40 interchange at SR 5 (North Highland Avenue), also considered a major north-south connector route, will be modified. The planned project includes the following improvements.